Features: DUAL MODE --- With ALL METAL DISC two modes rotate the knob to switch. DISC mode comes with auto ground balance, used to discriminate the metal type. And ALL METAL is used to find all kinds of metal targets. It\'s used to find not only ferrous metal ,but also non-ferrous one. WATERPROOF SEARCH COIL --- 8in diameter search coil and the stem enables you to use metal to explore under water, ideal for detecting on the beach or in the stream. (control house can not put in the water) ERGONOMIC DESIGN --- Metal Detector is in accordance with ergonomic design, comfortable and convenient to use with adjustable stem extending from 30in-63in, the arm rest design saves more effort for you. DESIGNED WITH EARPHONE JACK --- Features a 3.5mm plug in EAR jack on the control panel, to connect earphones(not include) to the detector, so you can listen privately, and makes it easier to identify subtle changes in the sounds you hear, for better detection results. EASY READ METER --- The meter pointer swings to the right if metal is found. Which is vivid and can be remind immediately.